Audubon butterfly app is free today

Audubon Butterflies — A Field Guide to North American Butterflies is free today. It’s usually $9.99.

The app is an interactive field guide to butterflies. Wondering what that butterfly in your front yard is? Just enter a few variables, such as your location, the habitat and the color, and the app will give you options on what it could be.

The app’s pretty easy to use, and it’s absolutely beautiful. The color photos are stunning. Even if you never use it to ID and butterfly, it’s fun to look at.